The amount of the tax imposed and collected on behalf of this state under an agreement shall be determined as provided in the Compressed Fuel Tax Act and sections 66-482 to 66-4,149. The Department of Revenue in administering the Compressed Fuel Tax Act and sections 66-482 to 66-4,149 shall provide information and assistance to the director regarding the amount of tax imposed and collected from time to time as may be necessary. The amount of tax due under an agreement may be collected by setoff against any state income tax refund due to the taxpayer pursuant to sections 77-27,210 to 77-27,221.